Improvement in eleoteioal oae-startees



l@uitrit tetta gutmt @fitta JOSEPH-.CLARK AND WILLIAM H. CLARK, or PHILADELPHIA PENNSYL- VANIA. i

I'r i i Letters Patent No. 71,458, dated November 26, 1867.

itin tlgehult marit in in ltsstettrrs annt mit making part nfftlge samt.

TO'ALI) WHOM IT MAY CONCERN:

Be it known that we, .IGSEPH CLARK and WILLIAM H. CLARK, of tne city` and 4county `of Philadelphia, and l State of Pennsylvania., have invented a new and useful Improvement in Electrical Car-Starters; and we do hereby declare that the following is a full andv exact description thereof, reference being had to the aecoxnpanying drawings, and to the letters of reference marked thereon.

The nature of our invention consists in a novel mode of connecting electrical batteries with the ordinary movement of .clocks by means of circuit-wheels, arranged in connection with lthe minute and hour-shafts, and other intermediate devices in connection therewith, for closing and breaking the current, to give alarms for` starting cars and other purposes, at stated intervals of time, the whole being constructed,` arrungedfand operating substantially as hereinafter described. In the accompanying drawings, which make a part of this` 1, specioation- 1 i M Figure 1 is a front view of an ordinary clock, with the-electrical apparatus in combination therewith for` I l giving the alarm. i

Figure 2 is a plan of the same.

Figure 3, Sheet No. 2, is a side elevation.

Figure 4 is an isometrieal view of the sliding changer E. i i

Figure 5 is a longitudinal section through the. circuit-wheels C, minute-shaft C,tube G, bushing b, hand 11 H, and nut I. i i

Figure 6 is a. face view of oneof the circuit-wheels C.

Figure 7 is an isometrical view ofthe rack F. v

A is the box or'case which contains the ordinary clock-movements. B is the dial, in front of which are the circuit-wheels C IEight of said wheels are represented in the drawings, but we do not confine ourselves to` t any particular number, as the number will be varied by the number of the various portions of starting-time". required. These wheels are in connection with the projecting'end of the shaft C ofthe minute-hand, `which 1 issupported in front by means of the vertical disk D, which has bent arms, a a,` secured at their outer ends,by means of screws, to the box A. There is a hard-rubber bushing, I, which insula'tes the minute-shaft from the. i, i disk. The circuit-wheels `C,.which may be of any convenient number, have `each a different number of teeth` i from the others, so as to adapt the apparatus for giving alarms at any required portions of time. In' the drawr ,j ings, the front wheel has thirty teeth, and consequently gives an alarmevery `two minutes; the nextone has i twenty teeth, and gives an alarm every three minutes; the others have respectively fifteen, twelve, ten, six, five, and four teeth, and give alarms every four, five, six, ten,'twelve, and ft'een minutes `respectively`1`and so on; l, the teeth may be increased to ahy'desired number, and the number of teeth so varied as to give any requisite portions of time. When theralarms are to be given for such portions of time that are not aliquot parts of sixty, the number of minutes in an hour, as seven for instance, which leaves a remainder, the wheel or wheels have to 1 be connected with the hour-hand shaft; and when the alarms are to be more than an hour apart, the wheeler 'i wheels, have also to he connected with the hour-hand shaft. E is a sliding changer, that has at the extreme end i of the arm 1 a platinum point, c, which is caused to come into contact with the teeth of the circuit-wheels C, as j thc-latter revolve. y This arm has a hub, d, which turns and slides freely on .the etude, which projectsinwards` from the' disk D, for the purpose of changing the platinum point c from one circuit-wheel to another. The extreme end of the arm 2 of the slide rests respectively in the notches or serrations of the rack F, which proi jects outwards from the disk D. The notches in the rack F are perpendicularywith the circuit-wheels respect` i ively, and those of the rack F coincide therewith, and are numbered according to the various portions of time` Aeach Wheel indicates when in connection 'with the platinum point c, so that by changing the arm 2 ofthe sliding i; changer E to the notch inthe rack F that is Amarked with the required portion of time, the arm l is brought intol i the notch in the rack F immediately over the circuit-wheel, which gives the alarm at the ends of such portions i of time. For instance, when the arm 1 of the sliding changer is inthe front notch of the rack F.the arm 2 is t in the corresponding notch in the ruck F', and the platinum point c'is brought into connection with tliewheel that `has thirty teeth, and gi'ves an alarm every two minutes;l but if we wantto` start-everythreeminutes, we

change the arm l into the second notch, which is numberedY three, and this brings the platinum point into connection with the wheel that has twenty teeth, and which gives an alarm every three minutes, and so on. The circuit-wheels C are permanently attached to the tubef'Gr,v which fits on the minute-shaft, and which has on its outer end a hand, H, by which the wheels are turnedso as to bring the first tooth of the wheel to the time'to I l commence starting. This is done by'loosening the nutI on the end ot' thoy shaft, whichallows the tube to turn freely on the shaft; then the hand His brought to the dot K, on the disk D, the first tooth of each wheel being in line therewith. When the wheel is set, the nut is screwed tight against the hand H, which brings the inner end of the tube AGr tight against the collarf ofthe sl1al`tto secure the tube, so that the circuit-.wheels C will turn with the shaft. y The minute-shaft C', tube G, circuit-wheels C, disk D, bushing insulator Z7, hand H, and nut I are shown in connection in fig. 5. K is a spring, which, by pulling the part 3 of the sliding cha-nger E upwards, brings the arms 1 and 2 downwards, so asto keep them steadily in the notches ofthe racks F and F', in which they are set..v The minute-shaft is connected with the pole J of the magnet by means of the wire L, through the piilarof the clock. The pole M of the magnet is connected with theY zinc or positive pole O ofthe battery by means ofv the wire N. The negative pole O of the battery is connected with the disk D by means of' the wire P and out-oil" Q on the side of the box A of the clock; so that when the teeth of the circuit-wheel-with which the platinum point c is arranged strikes the latter, itr closes the circuit on the magnet, and draws the armature R against the coresy 1 and 2 of the magnetic poles M and J, and the armature being attached to the enlargement g,.of the rod g, of the hammer S, the latter at the same time strikes the bell'lhaud give-s the' alarm.- The hammer is hung on the front end of the stud h. The'armature R is permanently attached to the cores and 2 of the'poles-M and J by means of' the'serewsz' and t, the latter confining the rear end ofthe arm' oture .to the bracket j, and gire the alarm during the revolutions of the circuit-wheel. v When the portions of time are to be changed, the operator takes h'old of the arm 1 of the sliding changer, and elevates it above the rack, and moves it into the notch which is numbered to designate theportions of time which are ldesired for starting. When the alarm is not to be used,'tl1e cut-ofi` Q is brought oft' from the plate V, as represented by red lines in iig. 1.

What we claim as new, and desire to secure by Letters Patent, is v Y 1. The combination of the circuit-wheels C, having different numbers of teeth, with the minute ondhourshafts, for giving alarms at.diierentportions of time, arranged and operating substantially upon the principle and in the-manner hereinbet'ore described.

2.v The movable slidingchanger E, having al platinum point, c, in combination with theracks F and F, for changing the alarm to different portions ol` time, substantially as speeied and shown. Y

3. The combination of the hand H with the circu'it-wheels C, by means of the tube G, substantially as described, and for the'purpose set forth.

4. The oombinationot' the tube G andv nut I with the circuit-wheels C and minute-shaft C', for setting the wheels to the starting-point, substantially as described.

In testimony that the above is our invention, we have -hereunto set our hands and aliixed our seals this twenty-third day of May, 1867.

JOSEPH CLARK. [1.. s] WM. H. CLARK. [1.. s.] Witnesses:

JOHN WHITE, STEPHEN UsrIcK. 

